// 全屏
export function fullScreen(){
    let el:any = document.documentElement;
    let rfs = el.requestFullScreen || el.webkitRequestFullScreen || el.mozRequestFullScreen || el.msRequestFullScreen;
  
    if (rfs) {
      rfs.call(el);
    }else if (typeof window.ActiveXObject !== "undefined") {
      //for IE，这里其实就是模拟了按下键盘的F11，使浏览器全屏
      let wscript = new ActiveXObject("WScript.Shell");
      if (wscript != null) {
        wscript.SendKeys("{F11}");
      }
    }
  }
  
  //退出全屏
  export function exitScreen(){
    let el:any = document;
    let cfs = el.cancelFullScreen || el.webkitCancelFullScreen || el.mozCancelFullScreen || el.exitFullScreen;
  
    if (cfs) {
      cfs.call(el);
    }
    else if (typeof window.ActiveXObject !== "undefined") {
      //for IE，这里和fullScreen相同，模拟按下F11键退出全屏
      let wscript = new ActiveXObject("WScript.Shell");
      if (wscript != null) {
        wscript.SendKeys("{F11}");
      }
    }
  }